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Correlation between apparent activation energy for hot working and temperature of no recrystallization in microalloyed steels
(Trans Tech Publications Ltd, Durnten-Zurich, 2003)
Two-stage linear ln[sinh(as)] vs 1/T plots, based on the stress data derived from either continuous or multipass flow curves generated by testing low carbon Nb/Ti microalloyed steel (Nb steel) and medium carbon V-microalloyed ...
Solids holdup and pressure drop in gas-flowing solids-fixed bed contactors
(Amer Chemical Soc, Washington, 2003)
Fundamentally based model for pressure drop in gas-flowing solids-fixed bed contactors is presented, together with a phenomenological semiempirical model for prediction of dynamic holdup. These simple models do not require ...
Characterization of colloidal chromia particles obtained by forced hydrolysis
(Pergamon-Elsevier Science Ltd, Oxford, 2003)
Colloidal particles of chromia have been prepared by forced hydrolysis of an aqueous solution containing chromium chloride hexahydrate. At elevated temperature, a controlled addition of potassium hydroxide yielded colloidal ...
Semi-IPNs based on polyacrylamide and poly(itaconic acid)
(Springer, New York, 2003)
Semi-IPNs based on polyacrylamide (PAAm) and poly(itaconic acid) (PIA) were prepared by two different techniques, polymerizing itaconic acid in the presence of polyacrylamide gel (Samples I) and by makiug the polyacrylamide ...
Improvement to the Flynn-Wall method of determining apparent activation energies of the thermal degradation of polymers
(Amer Chemical Soc, Washington, 2003)
An improvement to the Flynn-Wall method of determining apparent activation energies of the thermal degradation of polymers is presented. The method involves the deconvolution of differential thermogravimetric (TG) curves ...
Osmotic coefficient of the ZnCl2(aq) at T=298.15 K
(Academic Press Ltd- Elsevier Science Ltd, London, 2003)
The osmotic coefficient of ZnCl2(aq) has been measured at T = 298.15 K by the isopiestic method over the range of molalities from (0.4 to 2.4) mol . kg(-1) with KCl(aq) as the reference solution. The available literature ...
Surface characterization of keratin fibres treated by water vapour plasma
(Wiley, Hoboken, 2003)
The effect of water vapour plasma treatment on the shrinkage behaviour and chemical properties of the surface of keratin fibres was studied. The wettability and shrink resistance of wool were improved even at low plasma ...
Recycled wool-based nonwoven material as an oil sorbent
(Amer Chemical Soc, Washington, 2003)
The aim of this study was to highlight the possibility of using recycled wool-based nonwoven material as a sorbent in an oil spill cleanup. This material sorbed higher amounts of base oil SN 150 than diesel or crude oil ...
The influence of steel surface modification by electrodeposited Zn-Fe alloys on the protective behaviour of an epoxy coating
(Elsevier Science Sa, Lausanne, 2003)
The electrochemical and transport properties of epoxy coatings electrodeposited on steel and steel modified by Zn-Fe alloys were investigated during exposure to 3% NaCl. The Zn-Fe alloys were deposited on steel surface ...
Influence of the mobile-phase modifier on the retention of some para-substituted amides; Correlation with compound lipophilicity
(Springer Heidelberg, Heidelberg, 2003)
The chromatographic behavior of Para-substituted amides of alpha-phenylacetic, benzoic, propanoic, and 2,2-dimethylpropanoic acid has been studied in reversed-phase thin-layer chromatography on silica gel impregnated with ...